Sunsong 3403909 Power Steering Return Line Hose Assembly - From Gear

Power Steering Return Hose for Expedition and Navigator

Sunsong 3403909 is a power steering return line hose assembly built for low-pressure, high-temperature return flow. It is engineered for a precise fit on the 2008 Ford Expedition and 2008 Lincoln Navigator from gear, with corrosion-resistant steel tubing and protective components where required.

Key Features

• Return hose assembly for power steering systems
• Max working pressure of 250 psi for low-pressure return applications
• Suitable for high-temperature operation in the steering return circuit
• High-grade steel tubing with zinc electroplating for rust and corrosion resistance
• Precision-engineered fit for 2008 Ford Expedition and 2008 Lincoln Navigator, from gear
• Includes brackets, grommets, heat shields, bushings, and protective sleeves as required to restore wearable parts to original condition

Detailed Description

This Sunsong power steering return line hose assembly, part number 3403909, is made for vehicles that need a direct-fit replacement in the steering return path. It is built to handle low-pressure fluid transfer while standing up to heat, humidity, road salt, water, and grime. This part cross-references Four Seasons 75190 for the same application.

For 2008 Ford Expedition and 2008 Lincoln Navigator applications, 3403909 supports a clean OE-style repair where the original return hose has aged, corroded, or begun to leak. The formed steel tubing and protective finishes help maintain routing and durability in demanding underbody conditions.

What This Part Helps Address

• Power steering fluid seepage from a worn return hose
• Corrosion on exposed steering line tubing
• Noise or poor steering feel caused by fluid loss
• Heat-related deterioration in the return circuit
• Fitment issues when replacing a damaged factory hose on Expedition or Navigator models

Installation Notes and Tips

Verify routing, mounting points, and connection locations before installation. This part is listed for 2008 Ford Expedition and 2008 Lincoln Navigator, from gear, so confirm the vehicle build date and steering configuration match the application. Inspect adjacent seals, clamps, and line supports during service to help prevent repeat leaks.

Quality Assurance

Sunsong manufactures this hose assembly to meet original equipment performance standards for return-line service. The zinc-coated steel tubing is specified for improved resistance to corrosion and rust in harsh road conditions.